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* [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
@ 2004-12-21 10:16 bero at arklinux dot org
2004-12-21 10:18 ` [Bug c/19102] " bero at arklinux dot org
` (18 more replies)
0 siblings, 19 replies; 20+ messages in thread
From: bero at arklinux dot org @ 2004-12-21 10:16 UTC (permalink / raw)
To: gcc-bugs
gcc -Wp,-MD,init/.main.o.d -nostdinc -iwithprefix include -D__KERNEL__
-Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
-fno-common -ffreestanding -std=gnu89 -O2 -fomit-frame-pointer -pipe
-msoft-float -mpreferred-stack-boundary=2 -march=pentium3
-Iinclude/asm-i386/mach-default -Wdeclaration-after-statement
-DKBUILD_BASENAME=main -DKBUILD_MODNAME=main -c -o init/.tmp_main.o
init/main.c
init/main.c: In function `unknown_bootoption':
include/asm/string.h:190: error: `asm' operand requires impossible reload
include/asm/string.h:190: error: `asm' operand requires impossible reload
include/asm/string.h:129: error: `asm' operand requires impossible reload
init/main.c:197: error: insn does not satisfy its constraints:
(insn 611 481 200 5 (set (reg:SI 1 dx)
(reg/v/f:SI 22 xmm1 [orig:89 s ] [89])) 36 {*movsi_1} (nil)
(nil))
init/main.c:197: confused by earlier errors, bailing out
make[1]: *** [init/main.o] Error 1
make: *** [init] Error 2
Works with any of -march=i386, -march=i586, -march=i686, -march=pentium4,
-march=athlon
--
Summary: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-
branch as of 2004/12/20
Product: gcc
Version: 3.4.4
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bero at arklinux dot org
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-ark-linux
GCC host triplet: i686-ark-linux
GCC target triplet: i686-ark-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug c/19102] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
@ 2004-12-21 10:18 ` bero at arklinux dot org
2004-12-21 10:22 ` bero at arklinux dot org
` (17 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bero at arklinux dot org @ 2004-12-21 10:18 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bero at arklinux dot org 2004-12-21 10:18 -------
Created an attachment (id=7789)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7789&action=view)
Preprocessed source
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug c/19102] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
2004-12-21 10:18 ` [Bug c/19102] " bero at arklinux dot org
@ 2004-12-21 10:22 ` bero at arklinux dot org
2004-12-21 12:23 ` [Bug target/19102] [3.4 Regression] " belyshev at lubercy dot com
` (16 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bero at arklinux dot org @ 2004-12-21 10:22 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |3.4.4
Known to work| |3.4.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
2004-12-21 10:18 ` [Bug c/19102] " bero at arklinux dot org
2004-12-21 10:22 ` bero at arklinux dot org
@ 2004-12-21 12:23 ` belyshev at lubercy dot com
2004-12-21 16:44 ` pinskia at gcc dot gnu dot org
` (15 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: belyshev at lubercy dot com @ 2004-12-21 12:23 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From belyshev at lubercy dot com 2004-12-21 12:22 -------
/* reduced testcase, use "-O1 -march=pentium3" */
int unknown_bootoption (void)
{
int i, j, k, l;
for (i = 0; i < 2; i++)
asm volatile(""
:"=a" (j), "=&S" (k), "=&c" (l)
:"1" (0), "2" (0));
return 0;
}
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |rth at gcc dot gnu dot org
Severity|normal |critical
Status|UNCONFIRMED |NEW
Component|c |target
Ever Confirmed| |1
GCC build triplet|i686-ark-linux |
GCC host triplet|i686-ark-linux |
GCC target triplet|i686-ark-linux |i686-*-*
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2004-12-21 12:22:41
date| |
Summary|-march=pentium3 breaks linux|[3.4 Regression] -
|kernel compiles w/ gcc-3_4- |march=pentium3 breaks linux
|branch as of 2004/12/20 |kernel compiles w/ gcc-3_4-
| |branch as of 2004/12/20
Target Milestone|--- |3.4.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (2 preceding siblings ...)
2004-12-21 12:23 ` [Bug target/19102] [3.4 Regression] " belyshev at lubercy dot com
@ 2004-12-21 16:44 ` pinskia at gcc dot gnu dot org
2004-12-21 17:55 ` bero at arklinux dot org
` (14 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-21 16:44 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-21 16:44 -------
Hmm, it worked with 2004-12-11.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (3 preceding siblings ...)
2004-12-21 16:44 ` pinskia at gcc dot gnu dot org
@ 2004-12-21 17:55 ` bero at arklinux dot org
2004-12-21 18:00 ` bero at arklinux dot org
` (13 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bero at arklinux dot org @ 2004-12-21 17:55 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bero at arklinux dot org 2004-12-21 17:55 -------
Worked in 2004-12-17 too, broken in 2004-12-20 and 2004-12-21 (I don't have
-18 and -19)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (4 preceding siblings ...)
2004-12-21 17:55 ` bero at arklinux dot org
@ 2004-12-21 18:00 ` bero at arklinux dot org
2004-12-22 11:31 ` ebotcazou at gcc dot gnu dot org
` (12 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bero at arklinux dot org @ 2004-12-21 18:00 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bero at arklinux dot org 2004-12-21 18:00 -------
Must be a cc1 issue - 2004-12-21 with
2004-12-17's /usr/libexec/gcc/*/3.4.4/cc1 works
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (5 preceding siblings ...)
2004-12-21 18:00 ` bero at arklinux dot org
@ 2004-12-22 11:31 ` ebotcazou at gcc dot gnu dot org
2004-12-22 12:08 ` ebotcazou at gcc dot gnu dot org
` (11 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2004-12-22 11:31 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-22 11:27 -------
Introduced with:
2004-12-19 Richard Henderson <rth@redhat.com>
* config/i386/i386.c (ix86_hard_regno_mode_ok): Always accept all SSE,
MMX, 3DNOW modes in SSE registers; always accept all MMX, 3DNOW modes
in MMX registers.
* config/i386/i386.h (VALID_SSE2_REG_MODE): Don't include
VALID_MMX_REG_MODE.
* config/i386/i386.md (movv4sf_internal, movv4si_internal,
movv2di_internal, movv2si_internal, movv4hi_internal,
movv2sf_internal, movv2df_internal, movv8hi_internal,
movv16qi_internal, movti_internal): Add leading '*' to name.
(movv2di_internal, movv2df_internal, movv8hi_internal,
movv16qi_internal, movv2df, movv8hi, movv16qi, movv2di,
pushv2di, pushv8hi, pushv16qi): Enable for SSE1.
(movv2si_internal, movv4hi_internal): Add SSE alternatives.
(movv8qi_internal, movv2sf_internal): Likewise.
(movtf): Simplify conditional.
(movv2sf, pushv2sf): Enable for MMX.
--
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2004-12-21 12:22:41 |2004-12-22 11:27:44
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (6 preceding siblings ...)
2004-12-22 11:31 ` ebotcazou at gcc dot gnu dot org
@ 2004-12-22 12:08 ` ebotcazou at gcc dot gnu dot org
2004-12-22 12:28 ` ebotcazou at gcc dot gnu dot org
` (10 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2004-12-22 12:08 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-22 11:43 -------
Investigating.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |ebotcazou at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (7 preceding siblings ...)
2004-12-22 12:08 ` ebotcazou at gcc dot gnu dot org
@ 2004-12-22 12:28 ` ebotcazou at gcc dot gnu dot org
2004-12-22 18:49 ` ebotcazou at gcc dot gnu dot org
` (9 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2004-12-22 12:28 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-22 12:24 -------
Why do we allow MMX modes in SSE regs now? The following patchlet is sufficient
to fix the problem:
Index: config/i386/i386.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/i386/i386.c,v
retrieving revision 1.635.2.18
diff -u -p -r1.635.2.18 i386.c
--- config/i386/i386.c 20 Dec 2004 05:37:36 -0000 1.635.2.18
+++ config/i386/i386.c 22 Dec 2004 12:21:42 -0000
@@ -14931,9 +14931,7 @@ ix86_hard_regno_mode_ok (int regno, enum
out of SSE registers, even when no operation instructions
are available. */
return (VALID_SSE_REG_MODE (mode)
- || VALID_SSE2_REG_MODE (mode)
- || VALID_MMX_REG_MODE (mode)
- || VALID_MMX_REG_MODE_3DNOW (mode));
+ || VALID_SSE2_REG_MODE (mode));
}
if (MMX_REGNO_P (regno))
{
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (8 preceding siblings ...)
2004-12-22 12:28 ` ebotcazou at gcc dot gnu dot org
@ 2004-12-22 18:49 ` ebotcazou at gcc dot gnu dot org
2004-12-22 19:12 ` rth at gcc dot gnu dot org
` (8 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2004-12-22 18:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-22 18:49 -------
I can't do much more at this point.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu dot
| |org
AssignedTo|ebotcazou at gcc dot gnu dot|unassigned at gcc dot gnu
|org |dot org
Status|ASSIGNED |NEW
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (9 preceding siblings ...)
2004-12-22 18:49 ` ebotcazou at gcc dot gnu dot org
@ 2004-12-22 19:12 ` rth at gcc dot gnu dot org
2004-12-22 20:02 ` rth at gcc dot gnu dot org
` (7 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rth at gcc dot gnu dot org @ 2004-12-22 19:12 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rth at gcc dot gnu dot org 2004-12-22 19:12 -------
Subject: Re: [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
> Why do we allow MMX modes in SSE regs now?
Because x86-64 calling conventions demand it.
r~
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (10 preceding siblings ...)
2004-12-22 19:12 ` rth at gcc dot gnu dot org
@ 2004-12-22 20:02 ` rth at gcc dot gnu dot org
2004-12-22 20:24 ` ebotcazou at gcc dot gnu dot org
` (6 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rth at gcc dot gnu dot org @ 2004-12-22 20:02 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rth at gcc dot gnu dot org 2004-12-22 20:02 -------
And, actually, we allowed MMX modes with -msse2 before, so there must be another
explanation of why things wouldn't have been failing with -march=pentium4.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rth at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (11 preceding siblings ...)
2004-12-22 20:02 ` rth at gcc dot gnu dot org
@ 2004-12-22 20:24 ` ebotcazou at gcc dot gnu dot org
2004-12-22 22:32 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2004-12-22 20:24 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-22 20:24 -------
> > Why do we allow MMX modes in SSE regs now?
>
> Because x86-64 calling conventions demand it.
The calling conventions for vector types I presume? The problem is that SImode
slipped through the cracks so the register allocator now jumps from SIREG to
INT_SSE_REGS for SImode pseudos. Is that an unintended side-effect?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (12 preceding siblings ...)
2004-12-22 20:24 ` ebotcazou at gcc dot gnu dot org
@ 2004-12-22 22:32 ` pinskia at gcc dot gnu dot org
2004-12-22 23:18 ` ebotcazou at gcc dot gnu dot org
` (4 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-22 22:32 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (13 preceding siblings ...)
2004-12-22 22:32 ` pinskia at gcc dot gnu dot org
@ 2004-12-22 23:18 ` ebotcazou at gcc dot gnu dot org
2004-12-22 23:27 ` rth at gcc dot gnu dot org
` (3 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2004-12-22 23:18 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-12-22 23:18 -------
> And, actually, we allowed MMX modes with -msse2 before, so there must be another
> explanation of why things wouldn't have been failing with -march=pentium4.
Allocation ordering considerations?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (14 preceding siblings ...)
2004-12-22 23:18 ` ebotcazou at gcc dot gnu dot org
@ 2004-12-22 23:27 ` rth at gcc dot gnu dot org
2004-12-22 23:53 ` ak at muc dot de
` (2 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rth at gcc dot gnu dot org @ 2004-12-22 23:27 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rth at gcc dot gnu dot org 2004-12-22 23:27 -------
Apparently register move costs.
Testing a Large Hack to prevent this suddenly appearing on the 3.4 branch.
For mainline, move pattern constraints should be fixed, and folks will have
to make sure to use -mno-sse when sse is not desired. Plus, -mno-sse will
have to be fixed such that it's effective when -march implies sse[23], and
we'll have to add extra code to not ICE on x86-64 when the ABI specifies
that parameters go in disabled registers.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (15 preceding siblings ...)
2004-12-22 23:27 ` rth at gcc dot gnu dot org
@ 2004-12-22 23:53 ` ak at muc dot de
2004-12-23 1:31 ` cvs-commit at gcc dot gnu dot org
2004-12-23 1:40 ` rth at gcc dot gnu dot org
18 siblings, 0 replies; 20+ messages in thread
From: ak at muc dot de @ 2004-12-22 23:53 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ak at muc dot de 2004-12-22 23:53 -------
FWIW i compiled a full 3.3-hammer compiled 2.6.10rc3 x86-64 kernel
for suspicious use of %xmm or %mm and there wasn't any.
There also is a warning in all 2.6 x86-64 kernels for kernel FPU use at runtime.
So at least on x86-64 it doesn't seem to be a real issue in practice.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (16 preceding siblings ...)
2004-12-22 23:53 ` ak at muc dot de
@ 2004-12-23 1:31 ` cvs-commit at gcc dot gnu dot org
2004-12-23 1:40 ` rth at gcc dot gnu dot org
18 siblings, 0 replies; 20+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-12-23 1:31 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-12-23 01:31 -------
Subject: Bug 19102
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-branch
Changes by: rth@gcc.gnu.org 2004-12-23 01:31:20
Modified files:
gcc : ChangeLog
gcc/config/i386: i386.c
Log message:
PR target/19102
* config/i386/i386.c (x86_inter_unit_moves): Disable.
(ix86_hard_regno_mode_ok): Disallow SSE2 and MMX scalar modes
in SSE registers when only SSE1 enabled.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.750&r2=2.2326.2.751
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.635.2.18&r2=1.635.2.19
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/19102] [3.4 Regression] -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
` (17 preceding siblings ...)
2004-12-23 1:31 ` cvs-commit at gcc dot gnu dot org
@ 2004-12-23 1:40 ` rth at gcc dot gnu dot org
18 siblings, 0 replies; 20+ messages in thread
From: rth at gcc dot gnu dot org @ 2004-12-23 1:40 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rth at gcc dot gnu dot org 2004-12-23 01:40 -------
http://gcc.gnu.org/ml/gcc-patches/2004-12/msg01777.html
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102
^ permalink raw reply [flat|nested] 20+ messages in thread
end of thread, other threads:[~2004-12-23 1:40 UTC | newest]
Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-12-21 10:16 [Bug c/19102] New: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-branch as of 2004/12/20 bero at arklinux dot org
2004-12-21 10:18 ` [Bug c/19102] " bero at arklinux dot org
2004-12-21 10:22 ` bero at arklinux dot org
2004-12-21 12:23 ` [Bug target/19102] [3.4 Regression] " belyshev at lubercy dot com
2004-12-21 16:44 ` pinskia at gcc dot gnu dot org
2004-12-21 17:55 ` bero at arklinux dot org
2004-12-21 18:00 ` bero at arklinux dot org
2004-12-22 11:31 ` ebotcazou at gcc dot gnu dot org
2004-12-22 12:08 ` ebotcazou at gcc dot gnu dot org
2004-12-22 12:28 ` ebotcazou at gcc dot gnu dot org
2004-12-22 18:49 ` ebotcazou at gcc dot gnu dot org
2004-12-22 19:12 ` rth at gcc dot gnu dot org
2004-12-22 20:02 ` rth at gcc dot gnu dot org
2004-12-22 20:24 ` ebotcazou at gcc dot gnu dot org
2004-12-22 22:32 ` pinskia at gcc dot gnu dot org
2004-12-22 23:18 ` ebotcazou at gcc dot gnu dot org
2004-12-22 23:27 ` rth at gcc dot gnu dot org
2004-12-22 23:53 ` ak at muc dot de
2004-12-23 1:31 ` cvs-commit at gcc dot gnu dot org
2004-12-23 1:40 ` rth at gcc dot gnu dot org
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